Evidence map›Paper›PMID 19549515›Full record

ArticleEuropean journal of pharmacology2009

Inhibitory effect of lidocaine on pain and itch using formalin-induced nociception and 5'-guanidinonaltrindole-induced scratching models in mice: behavioral and neuroanatomical evidence.

Saadet Inan, Nae J Dun, Alan Cowan

Abstract read
In one paragraph

Article in European journal of pharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Atopic Dermatitis: Managing the Itch.Advances in experimental medicine and biology · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Magi-1 scaffolds NaFASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2019
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Management of itch in atopic dermatitis.Seminars in cutaneous medicine and surgery · 2011
    Review
  16. Article
  17. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Saadet InanDepartment of Pharmacology, Temple University School of Medicine, Philadelphia, PA 19140, USA. sinan@temple.edu
Nae J Dun
Alan Cowan
Temple University · US

Funding

Pilot Projects Core (PPC)P30DA013429 · NIDA · TEMPLE UNIV OF THE COMMONWEALTH · PI Anjali M Rajadhyaksha · 2000 to 2026
$34.6M
Activity of Preganglionic Neurons in VitroR37NS018710 · NINDS · TEMPLE UNIV OF THE COMMONWEALTH · PI DUN, NAE J · 2003 to 2009
$2.2M
ACTIVITY O PREGANGLIONIC NEURONS IN VITROR01NS018710 · NINDS · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI DUN, NAE J · 1985 to 2001
$493k
NIDA NIH HHS P30 DA013429NIDA NIH HHS P30DA013429NINDS NIH HHS R01 NS018710NINDS NIH HHS R37 NS018710PHS HHS 18710
6 · The paper itself

Abstract

The aim of this study was to establish the effect of lidocaine, a local anesthetic, on pain and itch using formalin-induced nociception and kappa opioid antagonist-induced scratching models in mice. We investigated if local intradermal pretreatment (at -10 min) with lidocaine N-ethyl bromide (lidocaine, 2%, 0.1 ml) antagonizes behavioral responses and prevents c-fos expression induced by pain and itch. Male, Swiss Webster mice (25-30 g, n=6-10) were used. Formalin (5%, 20 microl, s.c.) or saline was administered to the right dorsal hindpaw and the time spent licking this paw was recorded at 0-10 min and 20-35 min. For itching, mice were challenged with 5'-guanidinonaltrindole (GNTI, 0.3mg/kg, s.c., behind the neck) or saline and the number of neck-directed scratches with hindpaws was counted for 30 min. C-fos immunohistochemistry was performed in lumbar (for pain) and cervical (for scratching) spinal sections 2h after the respective treatments. We found that lidocaine (a) antagonizes both formalin-induced pain and GNTI-induced scratching and (b) prevents c-fos expression evoked by pain (medial side of the superficial layer and deeper layers of the dorsal horn) and itch (lateral side of the superficial layer of the dorsal horn). Additionally, GNTI caused c-fos activation in mice wearing an Elizabethan collar (to prevent scratching of the neck) suggesting that GNTI provokes c-fos expression by inducing an itch sensation. Our results highlight the antipruritic properties of lidocaine and argue for its comprehensive clinical testing against pruritic states.

Indexed as

AnimalsBehavior, AnimalFormaldehydeGene Expression RegulationGuanidinesLidocaineMaleMiceMorphinansNaltrexoneNeuronsPainProto-Oncogene Proteins c-fosPruritusReceptors, Opioid, kappa17-cyclopropylmethyl-6,7-didehydro-4,5-epoxy-5'-guanidinyl-3,14-dihydroxyindolo(2',3'-6,7)morphinanFormaldehydeGuanidinesLidocaineMorphinansNaltrexoneProto-Oncogene Proteins c-fosReceptors, Opioid, kappa

Identifiers

PMID19549515
PMCPMC2735214
OpenAlexW2035459676

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.